Apparatus to control fluid flow through a tube



FIG. 1 is a front, bottom, and right side perspective view of the apparatus to control fluid flow through a tube, showing my new design;

FIG. 2 is a front, top, and left side perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is an enlarged front side elevational view thereof; and,

FIG. 8 is an enlarged back side elevational view thereof.

The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines shown in the figures represent portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an apparatus to control fluid flow through a tube, as shown and described. 